Distinctions in heterotrophic and autotrophic-based metabolism as recorded in the hydrogen and carbon isotope ratios of normal alkanes.
Identifieur interne : 000F55 ( Main/Exploration ); précédent : 000F54; suivant : 000F56Distinctions in heterotrophic and autotrophic-based metabolism as recorded in the hydrogen and carbon isotope ratios of normal alkanes.
Auteurs : Brett J. Tipple [États-Unis] ; James R. Ehleringer [États-Unis]Source :
- Oecologia [ 1432-1939 ] ; 2018.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical : Alkanes, Carbon Isotopes, Deuterium, Hydrogen, Waxes.
- Plant Leaves.
Abstract
The hydrogen isotope values of n-alkanes (δ2Hn-alkane) reflect a plant's water source and water relations, while the carbon isotope values (δ13Cn-alkane) relate to a plant's carbon metabolism and response to environmental conditions. However, the isotopic dynamics of the transition from heterotrophic to autotrophic metabolism during foliar development on δ2Hn-alkane and δ13Cn-alkane remain unclear. Here, we monitored δ2Hn-alkane and δ13Cn-alkane across a growing season from Betula occidentalis, Populus angustifolia, and Acer negundo. In addition, we compiled δ2H values of atmospheric vapor, leaf water, xylem water, and stream water as well as δ13C values of bulk leaf tissue (δ13Cbulk). We found δ2Hn-alkane and δ13Cn-alkane varied with leaf development and indicated that the majority of wax development occurred during the initial growing season. The patterns in δ2Hn-alkane were broadly consistent between species and with previous studies; however, each species had a unique final δ2Hn-alkane value. The δ13Cbulk for all species demonstrated a characteristic 13C-enrichment during the initial growing season, followed by 13C-depletion, while δ13Cn-alkane did not exhibit a consistent trend between the species. These δ13C data suggested a decoupling of the isotopic inputs between n-alkanes and photosynthetic leaf tissue. When coupled with δ2Hn-alkane, these data suggested that the precursor compounds utilized in initial production of n-alkanes might be variable and possibly indicated that the stored precursors used for initial leaf tissue and wax production originated from different sources. Nonetheless, these data indicated that the isotopic signatures of n-alkanes relate to a mixture of precursors, but only during a distinct period of leaf ontogeny.
DOI: 10.1007/s00442-018-4189-0
PubMed: 29955986
Affiliations:
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Tipple</name><affiliation wicri:level="1"><nlm:affiliation>Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT, 84112, USA. brett.tipple@utah.edu.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT, 84112</wicri:regionArea><wicri:noRegion>84112</wicri:noRegion></affiliation><affiliation wicri:level="1"><nlm:affiliation>Global Change and Sustainability Center, University of Utah, 115 South 1460 East, Salt Lake City, UT, 84112, USA. brett.tipple@utah.edu.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Global Change and Sustainability Center, University of Utah, 115 South 1460 East, Salt Lake City, UT, 84112</wicri:regionArea><wicri:noRegion>84112</wicri:noRegion></affiliation></author><author><name sortKey="Ehleringer, James R" sort="Ehleringer, James R" uniqKey="Ehleringer J" first="James R" last="Ehleringer">James R. Ehleringer</name><affiliation wicri:level="1"><nlm:affiliation>Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT, 84112, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT, 84112</wicri:regionArea><wicri:noRegion>84112</wicri:noRegion></affiliation><affiliation wicri:level="1"><nlm:affiliation>Global Change and Sustainability Center, University of Utah, 115 South 1460 East, Salt Lake City, UT, 84112, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Global Change and Sustainability Center, University of Utah, 115 South 1460 East, Salt Lake City, UT, 84112</wicri:regionArea><wicri:noRegion>84112</wicri:noRegion></affiliation></author></analytic><series><title level="j">Oecologia</title><idno type="eISSN">1432-1939</idno><imprint><date when="2018" type="published">2018</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alkanes (MeSH)</term><term>Carbon Isotopes (MeSH)</term><term>Deuterium (MeSH)</term><term>Hydrogen (MeSH)</term><term>Plant Leaves (MeSH)</term><term>Waxes (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Alcanes (MeSH)</term><term>Cires (MeSH)</term><term>Deutérium (MeSH)</term><term>Feuilles de plante (MeSH)</term><term>Hydrogène (MeSH)</term><term>Isotopes du carbone (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Alkanes</term><term>Carbon Isotopes</term><term>Deuterium</term><term>Hydrogen</term><term>Waxes</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Plant Leaves</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Alcanes</term><term>Cires</term><term>Deutérium</term><term>Feuilles de plante</term><term>Hydrogène</term><term>Isotopes du carbone</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The hydrogen isotope values of n-alkanes (δ<sup>2</sup>H<sub>n-alkane</sub>) reflect a plant's water source and water relations, while the carbon isotope values (δ<sup>13</sup>C<sub>n-alkane</sub>) relate to a plant's carbon metabolism and response to environmental conditions. However, the isotopic dynamics of the transition from heterotrophic to autotrophic metabolism during foliar development on δ<sup>2</sup>H<sub>n-alkane</sub> and δ<sup>13</sup>C<sub>n-alkane</sub> remain unclear. Here, we monitored δ<sup>2</sup>H<sub>n-alkane</sub> and δ<sup>13</sup>C<sub>n-alkane</sub> across a growing season from Betula occidentalis, Populus angustifolia, and Acer negundo. In addition, we compiled δ<sup>2</sup>H values of atmospheric vapor, leaf water, xylem water, and stream water as well as δ<sup>13</sup>C values of bulk leaf tissue (δ<sup>13</sup>C<sub>bulk</sub>). We found δ<sup>2</sup>H<sub>n-alkane</sub> and δ<sup>13</sup>C<sub>n-alkane</sub> varied with leaf development and indicated that the majority of wax development occurred during the initial growing season. The patterns in δ<sup>2</sup>H<sub>n-alkane</sub> were broadly consistent between species and with previous studies; however, each species had a unique final δ<sup>2</sup>H<sub>n-alkane</sub> value. The δ<sup>13</sup>C<sub>bulk</sub> for all species demonstrated a characteristic <sup>13</sup>C-enrichment during the initial growing season, followed by <sup>13</sup>C-depletion, while δ<sup>13</sup>C<sub>n-alkane</sub> did not exhibit a consistent trend between the species. These δ<sup>13</sup>C data suggested a decoupling of the isotopic inputs between n-alkanes and photosynthetic leaf tissue. When coupled with δ<sup>2</sup>H<sub>n-alkane</sub>, these data suggested that the precursor compounds utilized in initial production of n-alkanes might be variable and possibly indicated that the stored precursors used for initial leaf tissue and wax production originated from different sources. Nonetheless, these data indicated that the isotopic signatures of n-alkanes relate to a mixture of precursors, but only during a distinct period of leaf ontogeny.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Automated" Owner="NLM"><PMID Version="1">29955986</PMID><DateCompleted><Year>2019</Year><Month>09</Month><Day>23</Day></DateCompleted><DateRevised><Year>2019</Year><Month>09</Month><Day>23</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1432-1939</ISSN><JournalIssue CitedMedium="Internet"><Volume>187</Volume><Issue>4</Issue><PubDate><Year>2018</Year><Month>08</Month></PubDate></JournalIssue><Title>Oecologia</Title><ISOAbbreviation>Oecologia</ISOAbbreviation></Journal><ArticleTitle>Distinctions in heterotrophic and autotrophic-based metabolism as recorded in the hydrogen and carbon isotope ratios of normal alkanes.</ArticleTitle><Pagination><MedlinePgn>1053-1075</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00442-018-4189-0</ELocationID><Abstract><AbstractText>The hydrogen isotope values of n-alkanes (δ<sup>2</sup>H<sub>n-alkane</sub>) reflect a plant's water source and water relations, while the carbon isotope values (δ<sup>13</sup>C<sub>n-alkane</sub>) relate to a plant's carbon metabolism and response to environmental conditions. However, the isotopic dynamics of the transition from heterotrophic to autotrophic metabolism during foliar development on δ<sup>2</sup>H<sub>n-alkane</sub> and δ<sup>13</sup>C<sub>n-alkane</sub> remain unclear. Here, we monitored δ<sup>2</sup>H<sub>n-alkane</sub> and δ<sup>13</sup>C<sub>n-alkane</sub> across a growing season from Betula occidentalis, Populus angustifolia, and Acer negundo. In addition, we compiled δ<sup>2</sup>H values of atmospheric vapor, leaf water, xylem water, and stream water as well as δ<sup>13</sup>C values of bulk leaf tissue (δ<sup>13</sup>C<sub>bulk</sub>). We found δ<sup>2</sup>H<sub>n-alkane</sub> and δ<sup>13</sup>C<sub>n-alkane</sub> varied with leaf development and indicated that the majority of wax development occurred during the initial growing season. The patterns in δ<sup>2</sup>H<sub>n-alkane</sub> were broadly consistent between species and with previous studies; however, each species had a unique final δ<sup>2</sup>H<sub>n-alkane</sub> value. The δ<sup>13</sup>C<sub>bulk</sub> for all species demonstrated a characteristic <sup>13</sup>C-enrichment during the initial growing season, followed by <sup>13</sup>C-depletion, while δ<sup>13</sup>C<sub>n-alkane</sub> did not exhibit a consistent trend between the species. These δ<sup>13</sup>C data suggested a decoupling of the isotopic inputs between n-alkanes and photosynthetic leaf tissue. When coupled with δ<sup>2</sup>H<sub>n-alkane</sub>, these data suggested that the precursor compounds utilized in initial production of n-alkanes might be variable and possibly indicated that the stored precursors used for initial leaf tissue and wax production originated from different sources. Nonetheless, these data indicated that the isotopic signatures of n-alkanes relate to a mixture of precursors, but only during a distinct period of leaf ontogeny.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Tipple</LastName><ForeName>Brett J</ForeName><Initials>BJ</Initials><AffiliationInfo><Affiliation>Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT, 84112, USA. brett.tipple@utah.edu.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Global Change and Sustainability Center, University of Utah, 115 South 1460 East, Salt Lake City, UT, 84112, USA. brett.tipple@utah.edu.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ehleringer</LastName><ForeName>James R</ForeName><Initials>JR</Initials><AffiliationInfo><Affiliation>Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT, 84112, USA.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Global Change and Sustainability Center, University of Utah, 115 South 1460 East, Salt Lake City, UT, 84112, USA.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><GrantID>ISO-1052551</GrantID><Agency>National Science Foundation (US)</Agency><Country>International</Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2018</Year><Month>06</Month><Day>28</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Oecologia</MedlineTA><NlmUniqueID>0150372</NlmUniqueID><ISSNLinking>0029-8549</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D000473">Alkanes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D002247">Carbon Isotopes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D014885">Waxes</NameOfSubstance></Chemical><Chemical><RegistryNumber>7YNJ3PO35Z</RegistryNumber><NameOfSubstance UI="D006859">Hydrogen</NameOfSubstance></Chemical><Chemical><RegistryNumber>AR09D82C7G</RegistryNumber><NameOfSubstance UI="D003903">Deuterium</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000473" MajorTopicYN="Y">Alkanes</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002247" MajorTopicYN="N">Carbon Isotopes</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003903" MajorTopicYN="N">Deuterium</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006859" MajorTopicYN="Y">Hydrogen</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014885" MajorTopicYN="N">Waxes</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">Compound-specific isotope analysis</Keyword><Keyword MajorTopicYN="Y">Cuticle</Keyword><Keyword MajorTopicYN="Y">Ecophysiology</Keyword><Keyword MajorTopicYN="Y">Leaf wax</Keyword><Keyword MajorTopicYN="Y">Stable isotope</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2017</Year><Month>07</Month><Day>22</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2018</Year><Month>06</Month><Day>05</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2018</Year><Month>6</Month><Day>30</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2019</Year><Month>9</Month><Day>24</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate 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Tipple</name></noRegion><name sortKey="Ehleringer, James R" sort="Ehleringer, James R" uniqKey="Ehleringer J" first="James R" last="Ehleringer">James R. Ehleringer</name><name sortKey="Ehleringer, James R" sort="Ehleringer, James R" uniqKey="Ehleringer J" first="James R" last="Ehleringer">James R. Ehleringer</name><name sortKey="Tipple, Brett J" sort="Tipple, Brett J" uniqKey="Tipple B" first="Brett J" last="Tipple">Brett J. Tipple</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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| HfdSelect -Kh $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd \
| NlmPubMed2Wicri -a PoplarV1
| This area was generated with Dilib version V0.6.37. |  |